.box4 {
  height: 100px;
  width: 100px;
  background-color: lightpink;
  background: url('../img/image.png');
  background-size: cover !important;
  background-position: center !important ;
}

.box3 {
  background-size: cover !important;
  background-position: center !important ;
  background: url('../img//th.jpg');
}